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公开(公告)号：US4843115A
公开(公告)日：1989-06-27
申请号：US154439
申请日：1988-02-09
IPC分类号： C08K5/3492 , C08L59/02
CPC分类号： C08K5/3492 , C08L59/02
摘要： An oxymethylene polymer composition which exhibits a reduced tendency to form mold deposits upon molding, reduced tendency to discolor under thermal stress and low extractable formaldehyde levels is provided by utilizing as a stabilizer a major amount of superpolyamide and a minor amount of a cyclic amidine compound of the formula: ##STR1## wherein R is phenyl, polynuclear aromatic, heterocyclic, cycloaliphatic and aliphatic containing at least 6 carbon atoms, as well as substituted derivatives of the listed substituents.
摘要翻译： 通过以大量的超聚酰胺和少量的环状脒化合物的稳定剂作为稳定剂，提供了在成型时表现出模具沉积的趋势降低的趋势，在热应力下降低的倾向和低可提取甲醛水平的甲醛聚合物组合物 其中R是苯基，含有至少6个碳原子的多核芳族，杂环，脂环族和脂族，以及所列取代基的取代衍生物。
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2.发明授权
公开(公告)号：US4727106A
公开(公告)日：1988-02-23
申请号：US932235
申请日：1986-11-18
申请人： James L. Paul , Andrew B. Auerbach
发明人： James L. Paul , Andrew B. Auerbach
摘要： An oxymethylene polymer composition which exhibits improved thermal stability is provided by utilizing as a stabilizer a major amount of superpolyamide and a minor amount of a transition metal salt.
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3.发明授权Grafting of functional compounds onto functional oxymethylene polymer backbones, with diisocyanate coupling agents, and the graft polymers thereof 失效功能性化合物与功能性甲醛聚合物主链，二异氰酸酯偶联剂及其接枝聚合物接枝
公开(公告)号：US5043398A
公开(公告)日：1991-08-27
申请号：US350811
申请日：1989-05-12
CPC分类号： C08G18/8064 , C08G18/10 , C08G18/56 , C08G2/18
摘要： Novel oxymethylene graft polymers are obtained by grafting a functional compound (i.e., a polymer or compound having one or two hydroxyl, carboxyl, or amine functional groups) onto an oxymethylene backbone having pendant hydroxyl groups which serve as reactive sites for the graft reaction with diisocyanate coupling agents.
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4.发明授权Novel polyacetal copolymers of trioxane and trimethylolpropane formal derivatives 失效三恶烷和三羟甲基丙烷正式衍生物的新型聚缩醛共聚物
公开(公告)号：US5004798A
公开(公告)日：1991-04-02
申请号：US350799
申请日：1989-05-12
申请人： Jerry A. Broussard , Andrew B. Auerbach , Nan L. Yang , James L. Paul , Yong C. Zheng , Chong L. Zhang
发明人： Jerry A. Broussard , Andrew B. Auerbach , Nan L. Yang , James L. Paul , Yong C. Zheng , Chong L. Zhang
CPC分类号： C08G2/24
摘要： Cationic copolymerization of trioxane and trimethylolpropane (TMP) formal or its ester derivatives yields acetal copolymers having pendant functional groups. The TMP formal or ester derivatives of TMP formal may therefore include functional groups selected from hydroxyl or ester moieties which are protected and thus survive the copolymerization with trioxane. These groups may then be present as functional reactive sites for the subsequent synthesis of block copolymers and/or to chemically bind modifiers to the acetal copolymer backbone, for example.
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5.发明授权Grafting of amine functional polymers onto functionalized oxymethylene polymers and the resulting graft polymers thereof 失效将胺官能聚合物接枝到官能化甲醛聚合物上及其所得的接枝聚合物
公开(公告)号：US5206308A
公开(公告)日：1993-04-27
申请号：US664436
申请日：1991-03-04
IPC分类号： C08G81/00
CPC分类号： C08G81/00 , Y10S525/926 , Y10S525/927
摘要： Novel oxymethylene graft polymers are obtained by grafting, via Michael addition, an amine functional polymer onto an oxymethylene backbone having pendant acrylate or substituted acrylate ester groups serving as reactive sites for the graft reaction.
摘要翻译： 通过迈克尔加成将胺官能聚合物接枝到具有侧链丙烯酸酯或用作接枝反应的反应性位点的取代的丙烯酸酯基团的甲醛主链上获得新的甲醛接枝聚合物。
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6.发明授权Novel polyacetal copolymers of trioxane and 1,2,6-hexanetriol formal derivatives 失效三恶烷和1,2,6-己三醇正式衍生物的新型聚缩醛共聚物
公开(公告)号：US4975518A
公开(公告)日：1990-12-04
申请号：US350791
申请日：1989-05-12
摘要： Cationic copolymerization of trioxane and 1,2,6-hexanetriol formal (HTF) or its ester derivatives yields acetal copolymers having pendant functional groups. The HTF formal or ester derivatives of HTF may therefore include functional groups selected from hydroxyl or ester moieties which are protected, and thus survive, the copolymerization with trioxane. These groups may then be present as functional reactive sites for the subsequent synthesis of block copolymers and/or to chemically bind modifiers to the acetal copolymer backbone, for example.
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公开(公告)号：US4906728A
公开(公告)日：1990-03-06
申请号：US181237
申请日：1988-04-13
申请人： Nan-Loh Yang , Andrew Auerbach , James L. Paul , Rose Pesce , Shian S. Wang
发明人： Nan-Loh Yang , Andrew Auerbach , James L. Paul , Rose Pesce , Shian S. Wang
IPC分类号： C08G65/16 , C07D321/06 , C08G4/00 , G03F7/039
CPC分类号： G03F7/039 , C07D321/06 , C08G4/00
摘要： The invention concerns a method for producing an acetal copolymer containing backbone bromo-functional groups comprising copolymerizing trioxane with 5,6,-dibromo-1,3-dioxepene. The invention also concerns methods of modifying acetal copolymers containing bromo-functional groups and the copolymers produced by the methods of the invention.
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8.发明授权
公开(公告)号：US4900783A
公开(公告)日：1990-02-13
申请号：US181047
申请日：1988-04-13
申请人： Nan-Loh Yang , Andrew Auerbach , James L. Paul , Rose Pesce , Shian S. Wang
发明人： Nan-Loh Yang , Andrew Auerbach , James L. Paul , Rose Pesce , Shian S. Wang
IPC分类号： C08G65/16 , C07D321/04 , C08F283/06 , C08G2/10 , C08G2/18 , C08G4/00 , C08G65/06 , C08G65/26
CPC分类号： C08G4/00 , C07D321/04 , C08G2/18
摘要： Acetal copolymers of trioxane and 1,3-dioxep-5-ene having a high degree of crystallinity and specific mole percent incorporations of 1,3-dioxep-5-ene are synthesized.The invention also provides a process for producing highly crystalline acetal copolymers by copolymerizing triozane and 1,3-dioxep-5-ene and precipitating the copolymer product from solution.The copolymers show much improved stability against halogen degradation.
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公开(公告)号：US4507495A
公开(公告)日：1985-03-26
申请号：US510846
申请日：1983-07-05
摘要： In the process of producing ethyl acrylate by the reaction of ethylene and acrylic acid in the presence of sulfuric acid, using phenolic type inhibitors, soluble manganese or cerium salts are additionally utilized.
摘要翻译： 在使用酚类抑制剂的情况下，通过乙烯和丙烯酸的反应在硫酸的存在下生产丙烯酸乙酯的过程中，还可以使用可溶性的锰或铈盐。
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公开(公告)号：US4158020A
公开(公告)日：1979-06-12
申请号：US828123
申请日：1977-08-26
CPC分类号： B01J31/185 , B01J31/20 , B01J31/2404 , C07C45/50 , B01J2231/321 , B01J2531/80 , B01J2531/822 , B01J2531/90 , B01J31/28
摘要： Olefins are converted to aldehydes and/or alcohols having one more carbon atom than the olefin by reacting the olefin with carbon monoxide and hydrogen in the presence of an in situ formed catalytic complex of a Group VIII metal, carbon monoxide and a trivalent ligand, the metal being introduced into the reaction zone in the form of a solution of a water-soluble inorganic salt dissolved in a solvent comprised of at least 40% by volume of a polyalkylene glycol, the polyalkylene glycol acting as a coupling agent preventing precipitation of the metal prior to formation of the catalyst complex.
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